EP0943059B1 - Bremssattel, insbesondere für kraftfahrzeuge - Google Patents
Bremssattel, insbesondere für kraftfahrzeuge Download PDFInfo
- Publication number
- EP0943059B1 EP0943059B1 EP97951978A EP97951978A EP0943059B1 EP 0943059 B1 EP0943059 B1 EP 0943059B1 EP 97951978 A EP97951978 A EP 97951978A EP 97951978 A EP97951978 A EP 97951978A EP 0943059 B1 EP0943059 B1 EP 0943059B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brake caliper
- bore
- chambers
- chamber
- several
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 description 11
- 210000002414 leg Anatomy 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000005266 casting Methods 0.000 description 6
- 210000004027 cell Anatomy 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 210000001316 polygonal cell Anatomy 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0016—Brake calipers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0016—Brake calipers
- F16D2055/002—Brake calipers assembled from a plurality of parts
Definitions
- the invention relates to a brake caliper, in particular for Motor vehicles, with a saddle bridge and with two right angles legs arranged for this purpose, being on one leg a housing with a bore for an actuating cylinder is arranged.
- Such calipers are generally known and have over a comparatively high weight. This will be whole basically considered disadvantageous because the weight of the Brake caliper directly into the total vehicle weight and on the other hand disadvantageously as an additional mass the operating and suspension behavior of the chassis is effective.
- many efforts have already been made to reduce the weight of the brake caliper.
- aluminum materials are used, which is a lower specific weight, but also lower Have load-bearing capacity and rigidity against stress.
- the strength and stiffness deficit can be compensated with larger material cross sections.
- larger cross sections in the area of the saddle bridge however, lead to the possible diameter of the Brake disc is reduced, which negatively affects braking performance effect.
- DE-A-44 20 652 describes a brake caliper of a disc brake known in which an additional during the casting Component is embedded in the brake caliper. On such a component either serves to increase the saddle strength or the formation of a cooling channel through the brake caliper, by placing a rough-shaped component in the caliper is poured. In any case, exact positioning is required of the component in the brake caliper disadvantageously an increased Manufacturing effort in cast manufacturing and increased if necessary also the total weight of the brake caliper.
- the object of the present invention is therefore a rigid To provide the caliper, which is a low Weight and at the same time low in the area of the saddle bridge Has material cross sections so that the largest possible effective brake disc diameter can be realized.
- Another object of the invention is a simple one To enable manufacture of the brake caliper.
- each chamber has at least one opening to the outside is.
- the opening enables insertion and-removing a cast core to make the Chamber.
- each opening serves for ventilation and Drainage during manufacture and operation.
- everyone is there Chamber assigned two diagonal openings, which is a special one reliable and rapid drainage guaranteed.
- this has the advantage that the Brake caliper does not have a full cross-section, but over has a closed hollow profile, which essentially is as rigid as the full cross section. With These features are a significant weight reduction connected with a small footprint.
- the invention Brake calipers with a hollow cross section can be inexpensively used Manufacture casting process without machining.
- the saddle bridge has two chambers and one between the breakthrough provided in the chambers, in which the Openings open.
- the breakthrough serves as part of manufacturing as a bearing for cores of the opposite one another Chambers. This also gives you the opportunity to single, one-piece core for the manufacture of the chambers use.
- the breakthrough is a further development of the invention between the chambers in the area of the side walls with ribs provided which with the upper wall and the lower wall aligned.
- the ribs reinforce the overall structure and lead in particular to an improved, rigid connection a thigh on the side between the two Chambers.
- each chamber is provided with struts, which from the radially upper wall to the radially lower one Extend wall.
- the struts can be adjusted by appropriate Core design can be made directly during casting and lead to an improved bending resistance of the brake caliper.
- the brake caliper is in two parts, where the parting plane is perpendicular to the housing side Cylinder axis is provided.
- This construction enables the use of different materials for the Housing and for the fist of the brake caliper. For example, it is possible to make the steel fist and the case To train aluminum.
- Another advantageous embodiment of the invention provides before that the caliper is in two parts, the division level is provided parallel to the cylinder axis.
- the two Saddle halves are made along the division plane with the help of an electron steel welded together.
- the strong one focused electron beam causes reliable on the one hand Attachment of the two halves over their entire Cross section and on the other hand an extremely small heat affected zone in edge areas of the weld seam, so that thin Cross sections, especially in the area of the chambers their original, keep unchanged material properties.
- a sensible method for producing an inventive Brake caliper provides that to form the chamber Core with undercuts and with a core bearing in one Mold is molded with molding agents, the core bearing is located in the area of an opening in the saddle bridge, and after casting the core with the undercuts is expelled through an opening in the chamber.
- a brake caliper 1 according to Figures 1 and 2 comprises a saddle bridge 2 and two arranged at right angles to the saddle bridge 2 Legs 3.4, which are opposite to each other.
- On the leg 3 is a housing 5 with a bore 6 for arranged an actuating cylinder, not shown.
- the fist-side leg 4 can have more than one another have separate fingers.
- the saddle bridge 2 has in her Inside 7 two hollow, opposing chambers 8.9, which on all sides of assigned retaining walls 10, 10 ', 11, 11' and one radially upper and one radial lower wall 12,13 is limited.
- Each chamber 8.9 points a substantially rectangular base and the Support walls 10, 11 are at an angle ⁇ to the axis 14 of the Bore 16 arranged.
- the support walls 10, 11 thus run aslant.
- Each chamber 8.9 has at least one opening 15.16 outward.
- the openings 15, 16 open into an opening 17 of the saddle bridge 2 and are immediately in alignment across from. Diagonally to each opening 15, 16 in the area a hole 18, 19 is provided in one corner of each chamber 8, 9, which radially inwards towards the brake disc has.
- Each hole 18,19 as well as the openings 15,16 serve to vent and drain the chambers 8.9.
- each of the ribs 20, 21 extends from side wall 22 to side wall 23 and lies in an end area gradually to the respective side wall 22.23. As the top view in Fig. 1 shows, each has Mainly rip a semicircular profile on and the opening 17 nestles on the fist side with a semicircular End 24 on the leg 4.
- the design the ribs 20, 21 and the opening 17 ensure a rigid support of the leg 4 and a corresponding rigid support of the saddle bridge 2. It remains to point out that the ribs 20, 21 lie in one plane with the upper and lower walls 12, 13 of the chambers 8.9.
- the saddle bridge 2 has a closed Hollow cross section on and inside 7 is the Chamber 8, which of the support walls 10 and the upper wall 12 and the lower wall 13 is limited.
- each chamber is provided with rib-like struts 25, which differ from the radially upper wall 12 to the radially lower wall 13 extend.
- the struts 25 are made of the same material like the saddle bridge 2 and support the walls 12.13 in addition. Serves to produce the struts 25 the core for the chambers 8,9, which in the desired type and Way with respect to shape and cross section of the struts 25 Recesses is provided. Every recess in the core leads to a strut 25 between the walls 12, 13.
- the struts can have any cross section and at one preferred embodiment, the struts have a honeycomb Base area with several corners or elliptical shape on.
- the wall thickness between the individual struts 25 can are basically arbitrary. in principle the aim is to have a small wall thickness to reduce the weight to keep low.
- An embodiment with polygonal Cells 28 to form walls arranged in a honeycomb shape 27 shows the sectional illustration in FIG. 7.
- the brake calipers described so far be made in one piece from one material.
- the brake caliper is in two parts made of different materials and the division level 26 runs at right angles to the axis 14 of the bore 6, as this is shown in broken lines in Fig. 2.
- the saddle bridge 2 is basically on two-piece brake calipers known manner attached to the housing 5, for example welded or screwed to this.
- a 8 shows a variant of a screwed-on saddle and 9.
- the leg 3 forms with the housing 5 Retaining wall of chamber 8.
- the division level runs 26 'parallel to the axis 14 of the bore 6, such as this is shown in dashed lines in FIGS. 2 and 6.
- the Partition plane 26 runs across the chambers 8,9, which has the advantage that for the manufacture of the chambers 8.9 no core is needed. Rather, the two saddle parts point corresponding, mutually assigned recesses, that after joining the two saddle halves together form the chambers 8,9.
- the saddle halves are by means of Electron beam welding to each other along the parting plane attached, which has the advantage that the The heat affected zone in the material of the saddle is particularly narrow is.
- FIG. 7 Another preferred embodiment of the invention is in 7 and shows a plan view of a Half of the saddle in the direction of arrow A in Fig. 6.
- Each cell 28 is hexagonal and is delimited by the walls 27.
- the thickness of the walls 27 is basically freely adjustable and also depends on how many cells 28 are provided. It is understood that the base area of the cells 28 can basically be modified as desired, without the basic idea to leave the invention. For example, it is possible, the base of the cells 28 3-, 4-sided or oval to design. Based on the round struts 25 it is basically also possible to round each cell 28 round. What is decisive in this design, however, is that the saddle parts along the division plane 26 'over the entire contact area are welded together.
- a brake caliper For the technical casting of a brake caliper according to the 1 and 2 becomes a core for the hollow manufacture of the chambers 8.9 used in a mold with molding agents.
- the core has undercuts and penetrates at least an opening 15, 16 of each chamber 8, 9.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
- Fig. 1
- teilweise geschnittene Draufsicht auf einen Bremssattel;
- Fig. 2
- Schnitt entlang der Linie II-II in Fig. 1;
- Fig. 3
- Schnitt entlang der Linie III-III in Fig. 1 in anderem Maßstab;
- Fig. 4
- Schnitt entlang der Linie IV-IV in Fig. 1 in anderem Maßstab;
- Fig. 5
- ein Ausführungsbeispiel im Schnitt wie in Fig. 3;
- Fig. 6
- ein weiteres Ausführungsbeispiel schematisch sowie im Schnitt gezeichnet wie in Fig. 3.
- Fig. 7
- Draufsicht auf ein Sattelunterteil in Richtung des Pfeiles A in Fig. 6.
- Fig. 8
- Längsschnitt durch ein Ausführungsbeispiel mit verschraubten Sattelteilen.
- Fig. 9
- Schnitt entlang der Linie IX-IX in Fig. 8.
Claims (10)
- Bremssattel, insbesondere für Kraftfahrzeuge, mit einer Sattelbrücke (2), die im Inneren (7) mindestens eine hohle Kammer (8,9) aufweist, welche allseitig von zugeordneten Stützwänden (10,11,12,13,22,23) begrenzt wird und mit zwei rechtwinklig dazu angeordneten Schenkeln (3,4), wobei an einem Schenkel (3) ein Gehäuse (5) mit einer Bohrung (6) für einen Betätigungszylinder angeordnet ist, dadurch gekennzeichnet, daß jede Kammer (8,9) mit mindestens einer Öffnung (15,16) nach außen versehen ist, wobei jeder Öffnung (15,16) eine dazu diagonal gegenüberliegend angeordnete, in einer Ecke vorgesehene Bohrung (18, 19) zugeordnet ist.
- Bremssattel nach Anspruch 1, dadurch gekennzeichnet, daß die Kammer (8,9) im wesentlichen eine rechteckige Grundfläche aufweist.
- Bremssattel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sattelbrücke (2) zwei Kammern (8,9) und einen zwischen den Kammern (8,9) vorgesehenen Durchbruch (17) aufweist, in den die Öffnungen (15,16) münden.
- Bremssattel nach Anspruch 3, dadurch gekennzeichnet, daß der Durchbruch (17) zwischen den Kammern (8,9) im Bereich der Seitenwände (22,23) sowie im Bereich von Faustfingern mit Rippen (20,21) versehen ist, welche mit der oberen Wandung (12) und der unteren Wandung (13) fluchten.
- Bremssattel nach Anspruch 4, dadurch gekennzeichnet, daß jede Rippe (20,21) allmählich an die Seitenwand (22,23) angeformt ist.
- Bremssattel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Seitenwände (10,11) der Kammern (8,9) in einem Winkel a zur Achse 14 der Bohrung (6) angeordnet sind.
- Bremssattel, insbesondere für Kraftfahrzeuge, mit einer Sattelbrücke (2), die im Inneren (7) mindestens eine hohle Kammer (8,9) aufweist, welche allseitig von zugeordneten Stützwänden (10,11,12,13,22,23) begrenzt wird und mit zwei rechtwinklig dazu angeordneten Schenkeln (3,4), wobei an einem Schenkel (3) ein Gehäuse (5) mit einer Bohrung (6) für einen Betätigungszylinder angeordnet ist, dadurch gekennzeichnet, daß die Sattelbrücke (2) einen geschlossenen Hohlquerschnitt aufweist.
- Bremssattel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jede Kammer (8,9) mit Streben (25) versehen ist, welche sich von der radial oberen Wandung (12) zu der radial unteren Wandung (13) erstrecken.
- Bremssattel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Bremssattel zweiteilig ist, wobei die Teilungsebene (26) rechtwinklig zu der Achse 14 der Bohrung (6) vorgesehen ist.
- Bremssattel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Bremssattel zweiteilig ist, wobei die Teilungsebene (26') parallel zu der Achse (14) der Bohrung (6) vorgesehen ist
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1965212 | 1996-12-14 | ||
DE19652123A DE19652123A1 (de) | 1996-12-14 | 1996-12-14 | Bremssattel, insbesondere für Kraftfahrzeuge |
PCT/EP1997/006588 WO1998027353A1 (de) | 1996-12-14 | 1997-11-26 | Bremssattel, insbesondere für kraftfahrzeuge |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0943059A1 EP0943059A1 (de) | 1999-09-22 |
EP0943059B1 true EP0943059B1 (de) | 2003-06-11 |
Family
ID=7814758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97951978A Expired - Lifetime EP0943059B1 (de) | 1996-12-14 | 1997-11-26 | Bremssattel, insbesondere für kraftfahrzeuge |
Country Status (5)
Country | Link |
---|---|
US (1) | US6298954B1 (de) |
EP (1) | EP0943059B1 (de) |
JP (1) | JP2001510536A (de) |
DE (2) | DE19652123A1 (de) |
WO (1) | WO1998027353A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29818886U1 (de) * | 1998-10-23 | 1999-03-04 | Dr.Ing.H.C. F. Porsche Ag, 70435 Stuttgart | Bremssattel für eine Teilbelagscheibenbremse |
JP3955168B2 (ja) * | 1999-10-29 | 2007-08-08 | 日信工業株式会社 | 車両用ディスクブレーキのキャリパボディの製造方法及びキャリパボディ |
US20040195054A1 (en) * | 2003-04-02 | 2004-10-07 | Thomas Robert Charles | Cell caliper for disc brakes |
DE102007051556A1 (de) * | 2007-10-29 | 2009-04-30 | Robert Bosch Gmbh | Selbstverstärkende Scheibenbremse |
DE102008019267B4 (de) * | 2008-04-17 | 2010-06-24 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse |
US20130048444A1 (en) * | 2011-08-25 | 2013-02-28 | Shimano Inc. | Bicycle disc brake caliper |
DE102012008003A1 (de) * | 2012-04-20 | 2013-10-24 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Scheibenbremse für Fahrzeuge |
DE102013017683A1 (de) * | 2013-10-18 | 2015-04-23 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Gießverfahren und Gussform zur Herstellung eines Bremssattels |
ITMI20132215A1 (it) | 2013-12-30 | 2015-07-01 | Freni Brembo Spa | Corpo pinza di un freno a disco |
DE102016207045A1 (de) * | 2016-04-26 | 2017-10-26 | Bayerische Motoren Werke Aktiengesellschaft | Bremssattel einer Scheibenbremse eines Kraftfahrzeuges |
US9989112B1 (en) * | 2017-02-24 | 2018-06-05 | Akebono Brake Industry Co., Ltd | Caliper housing having a mass damper |
US20180363717A1 (en) * | 2017-06-14 | 2018-12-20 | Akebono Brake Industry Co., Ltd | Hollow bridge caliper with filled core |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3556265A (en) | 1968-10-01 | 1971-01-19 | Gen Motors Corp | Disc brake caliper housing |
US3626580A (en) | 1968-10-01 | 1971-12-14 | Gen Motors Corp | Method of manufacturing disc brake caliper housings |
US3881576A (en) * | 1970-10-14 | 1975-05-06 | Tokico Ltd | Disk brake unit caliper mounting |
US4102440A (en) * | 1977-04-11 | 1978-07-25 | Airheart Products, Inc. | Cam operated disc brake |
US4318460A (en) * | 1979-11-29 | 1982-03-09 | The Bendix Corporation | Pressurized fluid chamber with supply and bleed fitting |
US4345675A (en) | 1980-03-06 | 1982-08-24 | The Bendix Corporation | Disc brake assembly with lightweight and space saving characteristics |
US4485897A (en) * | 1981-09-11 | 1984-12-04 | Honda Giken Kogyo Kabushiki Kaisha | Disc brake system |
GB2127117B (en) | 1982-08-30 | 1985-09-11 | Teves Gmbh Alfred | Caliper-type disc brakes |
DE4202394A1 (de) * | 1991-04-04 | 1992-10-08 | Teves Gmbh Alfred | Schwimmsattel-teilbelagscheibenbremse mit einem bremsengehaeuse aus leichtmetall |
JPH05215157A (ja) | 1992-02-06 | 1993-08-24 | Nissin Kogyo Kk | 車両用ディスクブレーキの分割型キャリパボディ |
US5282521A (en) * | 1992-10-02 | 1994-02-01 | General Motors Corporation | Shell disc brake |
GB9305795D0 (en) * | 1993-03-19 | 1993-05-05 | Automotive Products Plc | A brake disc |
US5394963A (en) * | 1993-06-18 | 1995-03-07 | The Budd Company | Composite cast brake caliper |
DE4402394B4 (de) | 1994-01-27 | 2005-02-10 | Basf Ag | Verfahren zur Entwässerung von wasserfeuchtem Pfropfkautschuk |
-
1996
- 1996-12-14 DE DE19652123A patent/DE19652123A1/de not_active Withdrawn
-
1997
- 1997-11-26 EP EP97951978A patent/EP0943059B1/de not_active Expired - Lifetime
- 1997-11-26 WO PCT/EP1997/006588 patent/WO1998027353A1/de active IP Right Grant
- 1997-11-26 JP JP52723298A patent/JP2001510536A/ja active Pending
- 1997-11-26 DE DE59710281T patent/DE59710281D1/de not_active Expired - Lifetime
- 1997-11-26 US US09/319,766 patent/US6298954B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0943059A1 (de) | 1999-09-22 |
JP2001510536A (ja) | 2001-07-31 |
US6298954B1 (en) | 2001-10-09 |
DE59710281D1 (de) | 2003-07-17 |
WO1998027353A1 (de) | 1998-06-25 |
DE19652123A1 (de) | 1998-06-18 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19990714 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB SE |
|
17Q | First examination report despatched |
Effective date: 20011116 |
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